Patents by Inventor Shichang Dou

Shichang Dou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Kitchen sink
    Patent number: D926947
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: August 3, 2021
    Assignee: Shanghai Aquacubic Sanitaryware Co., Ltd.
    Inventors: Ruizhi Ling, Shichang Dou